[1] Benzofuro [2,3-d] pyridazines II. Etude des benzofuropyridazones |
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Authors: | Michel Cugnon De S vricourt,Max Robba |
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Affiliation: | Michel Cugnon De Sévricourt,Max Robba |
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Abstract: | The synthesis of 1,2-dihydro[1]benzofuro[2,3-d]pyridazin-1-one and 3,4-dihydro [1]benzofuro[2,3-d]pyridazin-4-one was accomplished by the eyclization of appropriately carbonyl-substituted benzofuran derivatives. Another successful synthetic route was provided using 1,2,3,4-tetrahydro[1]benzofuro[2,3-d]pyridazine-1,4 dione and 1,2,3,4-tetrahydro[1]benzofuro[2,3-d]pyridazin-4-one. The structure of a nitrobenzofuropyridazin-4-one was established using nmr and the nuclear Overhauser effect. |
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